Reference

Only code that exists today appears under “Available”. Last checked 2026-11-02.

All source repositories below are private, and the packages aren’t publicly installable.

Available: SPAWN EVM prototype

Package	Contents
`@decoperations/spawn-proto-core`	`SpawnPredictor`, `SpawnDeployer`, `SpawnMonitor`, `ISpawnStorage`
`@decoperations/spawn-proto-patterns-invoice`	`createInvoiceSpawn`, init code and URI helpers
`@decoperations/spawn-proto-watchers`	Alchemy and Request Network webhook parsing and signature checks

These are prototype APIs and will change. spawn-proto#2 will replace the predictor’s shape.


type SpawnState = 'predicted' | 'triggered' | 'deployed' | 'executed' | 'failed'
 
interface SpawnPrediction {
  address: Address
  salt: Hex
  initCode: Hex
  initCodeHash: Hex
}

Contracts

Contract	Purpose	Deployment
`Create2Factory`	Stateless deployer and predictor	Sepolia: `0xBd9680E4dD16Bc3bebE8557F47FFA54184679334`
`GenericForwarderMinimal`	Forwards ETH at construction, on `dev`	Deployed per program
`DepositForwarder`	Forwards through Request Network, with a guardian sweep	Deployed per program

Available: Cardano prototype

cardano-invoicing on branch dev. See the adapter page for parameters and redeemers.

Item	Value
Compiler	Aiken `v1.1.24`
Plutus version	V3
Validator	`invoice.invoice` in `validators/invoice.ak`
Blueprint	`plutus.json`

Planned, not available

These names come from design documents. Don’t write code against them.

Name	Layer	Purpose
`SporeEnvelope`	SPORE	Signed object wrapper
`SpawnRef`	SPORE and SPAWN	Reference from a SPORE to a program
`Invoice`, `PaymentRequest`, `PaymentReceipt`	Payment profile	Typed objects
`PAY`, `SEND`, `REQUEST`	Payment profile	Commands
`PaymentQuote`, `FeeBreakdown`	Calvin	Quote model